DYNAMIC CO₂ MANAGEMENT SYSTEM IN LOW EMISSION VEHICLE PROMOTION

Abstract

In Japan, the government promised to reduce CO₂ emission in 2020 by 25% comparing with 1990's levels as a countermeasure of the global warming problem. CO₂ emission from transportation sector shares 20 % of total CO₂ emission, and it is brought by 90% from car. Therefore, effective politics are required to reduce the car CO₂ emission. This study, purposes to develop the dynamic approach for CO₂ management policies including the investment, timing and its amount choice of available, policy measure, in order to meet the reduction target under the policy-cost minimization standard. Our analysis is organized as follows. At first, this study develops two models which objective variables are renewal period and annual vehicle kilometer, or purchasing car type. The models are used as the sample generator of the target area. The optimization problem which designs the dynamic policy type and amount is formulated with the constrained condition about the reduction target, for the cost minimization of policy implementation. Through empirical application of the proposed model system, the effectiveness of the simulation system is clarified.